Barsen'thor could possibly win. Valkorions statement about Jadus being the best Sith in his empires history is highly compelling though. If he truly is greater than Malgus, Nyriss, Baras, the Dread Masters etc then he scales to insane heights. 'Thor already had significant trouble with the First Son even with Syo being a factor in that. An even more powerful Jadus would be a serious challenge. I'd say that Jadus likely has greater power and more advanced abilities while 'Thor has greater raw skill and tenacity.
Either way its an incredible fight.
It matches up with the other statement about his power being second to Vitiates and his dreadnaught feat was insane.
Its not non-existent. Its a valid quote from the game. Even if we were to decide the HoTlander is canon the statement doesn't disappear or become less accurate. They still wrote it into the game as an valid option.
I've seen little to indicate Jadus is even remotely as powerful as the rest of the higher ups in the Dark Council, or anything to point to Jadus legitimately being the most powerful Sith in the Empire at any point in time. Valkorion calling him the greatest Sith his Empire ever produced has nothing to do with power, mostly because it's about the agent killing him in a dream. Why this sounds like evidence to you is a mystery the world may never know the answer to.
Originally posted by NephthysThe character Valkorion would make up lies for a reason (to quell the Outlander's wrath and suspicion). He's an unreliable narrator, too. Just like that time he claimed to have left the Outlander's body without actually being able to.
The same writers wrote both situations, they aren't going to just make up lies for no reason.